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Author Topic: Mycelium gear API scam?!  (Read 79 times)
valarinstagramis
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July 30, 2019, 10:52:06 PM
 #1

I've been working with them for years but since 22th of July all payments goes to unknown addresses.
I create invoice on 10 usd and api returns me wallet
I send btc to the wallet.

It used to instantly show in my wallet that unconfirmed transaction received.
But now its sending to somewhere else.

I tried manually send to my wallet - and instantly received the funds.

Now I have 30+ transactions missing... those transactions obviously went to somewhere else...
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July 31, 2019, 04:40:51 AM
 #2

What wallet are you receiving the btc to? Is it an SPV wallet like Electrum?

If so, it's possible that someone might have generated a lot of addresses via the API and the API is now generating addresses out past the gap limit of your wallet... so your wallet is not registering the new transactions as it is not looking for them.

Have you also tried using the BIP39 mnemonic tool to manually check if the addresses being generated by the API match ones being generated from your xpub? You don't need to input your mnemonic or xprv... you can paste your xpub into the "BIP32 root key" box at the top of the page, click the "BIP32" tab... and set the custom derivation path to simply "m" (or it might be "m/0" depending on which xpub you're actually using)... you can then generate as many addresses as you need to check that the API is actually generating addresses based on your xpub.



valarinstagramis
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July 31, 2019, 11:45:15 AM
 #3

What wallet are you receiving the btc to? Is it an SPV wallet like Electrum?

If so, it's possible that someone might have generated a lot of addresses via the API and the API is now generating addresses out past the gap limit of your wallet... so your wallet is not registering the new transactions as it is not looking for them.

Have you also tried using the BIP39 mnemonic tool to manually check if the addresses being generated by the API match ones being generated from your xpub? You don't need to input your mnemonic or xprv... you can paste your xpub into the "BIP32 root key" box at the top of the page, click the "BIP32" tab... and set the custom derivation path to simply "m" (or it might be "m/0" depending on which xpub you're actually using)... you can then generate as many addresses as you need to check that the API is actually generating addresses based on your xpub.




Thank you very much!
This is actually what happened here. Found new generated address in the list at 2600+ position
Now I need to find out how to make electrum load more than 2500 addresses there...
valarinstagramis
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July 31, 2019, 11:48:27 AM
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Do you have any idea which wallet I should use in order to see m/0/n adresses where n > 2500 ?
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July 31, 2019, 01:11:44 PM
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 #5

Now I need to find out how to make electrum load more than 2500 addresses there...


To generate 2500 addresses, type the following in the console (View -> Show console):

Code:
for x in range (0, 2500): wallet.create_new_address(False)

The execution might take a few seconds.
The syncing process (for 2500 addresses) afterwards might take up to a minute.

valarinstagramis
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July 31, 2019, 02:00:35 PM
 #6

Thank you its worked!
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